Refillable container

A refillable container, comprising:

• a liquid inner container, which has a suction port formed at a center of an upper surface and a bottom portion formed into a pyramid shape having a deepest portion at a center of the bottom portion, and is configured to contain a liquid inside and be replaced when the liquid has been exhausted;
• a support member configured to hold the bottom portion of the liquid inner container to support the liquid inner container in a standing state;
• a lid member, which is fitted from above to an outer periphery of the liquid inner container supported by the support member to accommodate the liquid inner container, and has a distal end portion configured to be locked to the support member;
• a discharge pump, which is provided on a top surface portion of the lid member, and is configured to discharge the liquid to an outside by sucking the liquid through a suction tube that is inserted, and through the suction port of the liquid container supported by the support member, into the liquid inner container, the suction tube of the discharge pump being inserted into the suction port of the liquid inner container when the lid member is fitted from above to the outer periphery of the liquid inner container;
• and
• positioning means for positioning, at a position at which the distal end portion of the lid member fitted to the outer periphery of the liquid inner container supported by the support member is locked to the support member, a position of the liquid inner container supported by the support member in a vertical direction is determined such that a distal end of the suction tube of the discharge pump inserted through the suction port of the liquid inner container is located in the pyramid shape of the bottom portion of the liquid inner container.